<varlistentry id="options.BackGradient">
<term>BackGradient <emphasis remap='I'>type</emphasis> <emphasis remap='I'>from</emphasis> <emphasis remap='I'>to</emphasis></term>
      <listitem>
<para>Specifies that a gradient should be used as a background instead of a
solid color. The gradient colors start at <emphasis remap='I'>from</emphasis> and end at <emphasis remap='I'>to</emphasis>.
<emphasis remap='I'>from</emphasis> and <emphasis remap='I'>to</emphasis> 
are color definition in one of the supported <ulink url="ColorScheme#color_values">color formats</ulink>. 
If gradient includes at least one transparent color ( alpha value set to be below FF ), gradient will be alpha-blended over the
root background image.
<emphasis remap='I'>type</emphasis>
can be 1, 2, 3, 4, or 5:</para>

<literallayout remap='.nf'>
1: Wharf-style diagonal gradient
2: Horizontal from top to bottom
3: Horizontal from top/bottom to center
4: Vertical from left to right
5: Vertical from left/right to center
6: Top-Left to Bottom Right diagonal ( same as 1 )
7: Bottom-Left to Top-Right diagonal
8: Vertical Top to Bottom ( same as 2 )
9: Horizontal Left to Right ( same as 4 )
</literallayout>
	</listitem>
</varlistentry>
